Ventilator



Mar. 6, 1923. 1,447,319. A. PAJALIC. VENTIL'ATOR. FILED JUNE 8, 1921- I 2 SHEETS-SHEET 1-- INVENTOR A TTOHNEYS WITNESS A. PAJALIC- Mar. 6; 1923.

VENTILATORL HLED JUNE 8.1921- 2 SHEETSSHEET 2.-

JNVE/VTOR C) M, w v m N m A ATTORNEYS Patented Mar. 6, i923.

ANTONIO PAJALIC, (1F DETROIT, IKICHIGAN.

VENTILATOR.

Application filed June 8,1921. Serial No. 475,911.

1 all whom, it may cozwern.

Be it known that'l, ANTONIO PAJALlC, a citizen of the United States,'and a resident of Detroit, in the county of \Vayne and State of h lichigan, have invented'certain new and useful Improvements in Ventilators, of which thefollowing is a specification.

This invention relates to ventilators, and

0 is an improvement over the construction il-v lustrated in my pending application for patent, Serial, No. 416,918. filed October l-fl,

An important object of thisinvention is to provide novel means for rotatably supporting the body otthe ventilator so that the same may freely rotate as the result oi the passage of air through the same.

A further object ot the invention is to provide a ventilatorotthe class described which'is quiet, el'licient in operation, and cheap to manufacture. i

Other objects and advantages of the invention will be apparent during the course 25 of the following description.

In the accompanying drawings, forming a part of this application and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a vertical sectional view through the improved ventilator,

Figure is a horizontal sectional view taken on line 2-2 of Figure 1,

Figure Sis a horizontal sectional view taken on line 33 of Figure 1,

Figure l is a detail section through alubricator embodiedin the invention, and

Figure 5 is a fragmentary perspective of another lubricator embodied in the invention.

Figure 6 is a section through the lubrica' tor illustrated in Figure 5.

In the drawings, wherein for the purpose of illustration is showna preferred embodiment of the invention, the numeral designates a stack which may have communication with the interior of a room within a huilding and which is providedwith a damper 6 pivoted indicated at 7 A chain 8 is connected to one side of the damper and extends to a convenient point from where the same may be operated. The ODPOESlte side ot the damper (S is provided with a weight J which swings the damper to its open position when the chain 8 is released.

As illustrated in Figure 1, the stack is provided at a point spaced from its upper end with upper and lower spiders l0 and 12 respectively which are formed with alined bearings ll and 15 respectively for the re ception of a tubular standard designated by the numeral 16; The standard 16 which eX- tends above the stack tor a substantial distance is securely connected to the bearings ll and 15 by means of set screws 17.

The body 20 oi the ventilator includes an annulus 21 having its lower end disposed below the upper end of the stack 5 and spaced from the same so as to permit a quantity of air to flow upwardly into the ventilator between the annulus 21 and the side of the stack. illustrated in F igure 1. an annular series of longitudinally curveil ribs 22 are secured at their lower ends to the outer side of the annulus and at their upper ends to an annular flange 26. The annular flange is in turn secured at its lower end to the upper portion of a sleeve 28 or ceni tral conduit which extends centrally through the ventilator and terminates in the plane of the annulus 21, the said sleeve 28 having its ends open to permit of the free passage of air through the same. The annular series of ribs are further held in position by means of a second annular flange 29 secured to the upper portion of the sleeve 38 and extending downwardly into contact with the upper portionsof the ribs 22.

riventilator head generally designated by the numeral is mounted upon the annular flange 29 and comprises a plurality of V- shaped haillesBO arranged outwardly of the openings 31 formedin the adjacent portion of the sleeve 28. By arranging the'V-shaped ballles outwardly of the openings 31 and in spaced relation to the same, rain and snow is effectively excluded from the interior of: the slceve28. The rain is further excluded fron i the sleeve 28 by means of an annular series of arcuate baffles 32 arranged outwardly of and overlapping the sides of the V-shaped batllcs 30, whereby to prevent the rain from entering the sleeve by way of the openings between the ll-shaped batlies 30.

The top plate 34 of the head 25 is mounted upon the battles and and supports a cone-shaped crown 35 having depending ears 36 arranged outwardly of the arcuate haiiles 232. The depending cars 36 not only add to th appearance oi the ventilator but aid in cxchiding the rain lroni the sleeve The crown 35 carries adepending bearing llll . be rendered noiseless.

The tubular standard 16 is enclosed with- 111 the casing 46 extendmg downwardly from I the crown and having it's'lower end provided with a lubricant cup 47 adapted for supplying a lubricant to an annular series of ball bearings 48 or other anti-friction elements between the lower end of the tubular casing 46 and a collar 49 secured to the standard by means of a set screw 50. The

collar 49 is formed with an annular groove 51 which ii'reely receives a set screw 52 carried by adepending flange 54 on the lower portion of the casing 46. The set screw 52 prevents the upward movement of the sleeve on the standard when the ventilator is subject. to strong currents of air.

Asillustrated in Figure 1 the stack 5 is provided with a plurality of inwardly struck lugs 68 which provide openings 69 for the passage of air from the outside into the stack. The openings 69 are surrounded by an annular flange 70 which prevents rain from passing through the openings. It will be seen that the annular flange 70 is l.- shaped in cross section.

In operation. the air striking the annular seriesof ribs 22 causes the ventilator to rotate with, the result that the casing 46 and the head 2!) will be rotated. The draft created by the movement of the air between the annulus 21 and the upper end of the stack causes the foul air to be drawn up throughtliie stack and either into the space between the ribs or through the sleeve 28. The air drawn into the sleeve 28 passes outwardly through the openings 31 and past thesides of the ba'liies 30 and 32.

In operationthe ventilator is extremely quiet and operates with a. maximum of efficiency. No motor is necessary for the operation of the ventilator and by means of this construction the same may be made in extremely large sizes for use 111 theaters and other places capable of holding a lan'ge number of people and wherein it is necessary to provide for the constant circulation of air.

One of the principal features of my invention resides in the fact that the foul air passing upwardly through the central conduit is not interfered with by strong air currents which may pass through the ribs 22. In other words, a strong draft passing through the outer side of the ventilator will not prevent the upward movement of the air to the central conduit. This construction provides a second ventilator arranged within the outer ventilator comprised by the series of longitudinally curved rims 22.

lVith reference to the foregoing descrip' tion taken in connection with the accompanying drawing it will be apparent that a ventilator constructed in accordance with this invention may be readily attached to 'a building and in. use will permitthe foul air to be eiiectively scavenged. Also the body 20 of the ventilator may be readily removed by loosening the set screws 50 and 52 whereuponthe body may be elevated for disconnecting the sleeve 28 from the tubular standard 16. As illustrated in Figure 1 the body 20- is connected at its lower end tothe sleeve or central air conduit by means of a plurality of radial spokes 117 extended through the annulus 21, through the central conduit and into the enlarged lowerportion of the sleeve 46.

I claim I 1. A ventilator comprising a body, a sleeve arranged therein, a tubular casing extended through said sleeve, a standard extended upwardly through saidcasin'g, the

upper portion of said sleeve being formed with openings, \l-shaped battles arranged outwardly of said open1ngs,'arcuate battles arranged outwardlyof said V-sha-ped baiiies,v

a top plate secured to said bafiies, and aplurality of radialspokes connecting the lower portion of said body and the. lower portion of said tubular casing.

2. A ventilator comprising a tubular body, a supporting standard extending upwardly from said body, anair conducting sleeve surrounding said standard and being in communication withsaid tubular body to receive air from the sa1ne,;an air discharge member arranged at the'upper end of said air conducting sleeve and being in communication with the same. an annular series of spaced ribs surrounding said sleeve and forming an annular air passage in communication with said tubular body, said'air pas sage surrounding said air conducting sleeye; and a tubular casing supporting said ribs and sleeve and mounted on said standard.

'3. A w-entila-tor comprising a tubular body, a supporting standard extending upwardly from the body, an air conducting sleeve surroundin aid standard and being in communication with said tubular body to. re-

ceive air from the same, an air discharge sleeve and ribs and mounted on said standard and a plurality of inwardly extendlng arins connected to said tubular body and having a bearing receiving said standard.

at. A ventilator comprising a tubular body, a supporting standard extending upwardly from saidbody, an air conducting sleeve surrounding said standard and being in cornniunioation with said tubular body to receive air from the same, an air discharge member arranged at the upper end of said air conducting sleeve and being in communication with the same an annular series of spaced ribs surrounding said sleeve and forming an annular air passage in communication with said tubular body a tubular casing supporting said ribs and said sleeve and mounted on said standard, said annular air passage surrounding said air conducting sleeve, and means carried by said tubular body to rotatably support said shaft.

ANTONIO PAJALIG 

